catch(NumberFormatException e){
	        	System.out.println("number format exception");
	        	System.out.println(e);
	        }
            catch(IllegalArgumentException e){
            	System.out.println("illegal argument exception");
	        	System.out.println(e);
	        }
            catch(Exception e){
            	System.out.println("other exception");
	        	System.out.println(e);
	        }